Superhydrophobic surfaces by anomalous fluoroalkylsilane self-assembly on silica nanosphere arrays

We present the self-assembled formation of nanosized PFDTS (1H,1H,2H,2H-perfluorodecyltrichlorosilane) features on multilayered silica sphere arrays. We reveal the importance of residual water within the microsphere multilayers during PFDTS deposition and discuss a possible mechanism for the formati...

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Veröffentlicht in:Langmuir : the ACS journal of surfaces and colloids. - 1991. - 26(2010), 15 vom: 03. Aug., Seite 12962-72
1. Verfasser: Raza, Muhammad Akram (VerfasserIn)
Weitere Verfasser: Kooij, E Stefan, van Silfhout, Arend, Poelsema, Bene
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2010
Zugriff auf das übergeordnete Werk:Langmuir : the ACS journal of surfaces and colloids
Schlagworte:Journal Article
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520 |a We present the self-assembled formation of nanosized PFDTS (1H,1H,2H,2H-perfluorodecyltrichlorosilane) features on multilayered silica sphere arrays. We reveal the importance of residual water within the microsphere multilayers during PFDTS deposition and discuss a possible mechanism for the formation of the siloxane nanostructures. The multiscaled roughness induced by these superstructures is shown to lead to superhydrophobic behavior. The role of PFDTS is twofold: it (i) lowers the surface energy and (ii) provides the essential roughness to achieve superhydrophobicity. Moreover, the absence of PFDTS nanostructures on monolayers or in the absence of water leads to considerably smaller contact angles thereby indicating the relevance of multiscaled roughness for superhydrophobicity 
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700 1 |a Kooij, E Stefan  |e verfasserin  |4 aut 
700 1 |a van Silfhout, Arend  |e verfasserin  |4 aut 
700 1 |a Poelsema, Bene  |e verfasserin  |4 aut 
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